NOT ROAD LEGAL
HJS High-Volume Metallic cat., 130mm, 100 CPSI.
Maximum flow, same performance increase as the Supersprint straight-pipe, cat deleting race system, great efficiency in decreasing emissions, lower engine operating temperature.
Supersprint Turbo Downpipe With Catalytic Converter – BMW E8X 1 Series 135i | E9X 3 Series 335i (N55)